550cc HP Limit?

[XtremeHKS]

I have some 550s for my car too, what else do i need in preperation for my t3/t4 setup

A new fuel rail? and an adjustable FPR?

[cortina-mk1]

550 mazda injectors will fit straight into the factory fuel rail.yes i think a fuel pressure regualtor is also a good idea to fit

[GotBoost4Yall]

I'm also wondering about preparing the fuel system. Alot of people are running Walbro 255s but just wondering if it makes sense to upgrade a fuel pump if the stock FPR is only rated at a certain amount of pressure. I'm prepping for the t28 since I plan to run at least 14psi, 440cc injectors,FMIC,etc........

Any hints on accessing the Fuel injectors?? I'm guessing the intake manifold will need to be removed??

:thinker

[GoofyATX240]

No it doesnt there like 3 or 4 bolts to get off loosen it up enough to move fuel rail around and you should be able to get the injectors out.

[Trigger]

i would upgrade the fuel pump if i was you...i know of people that leaned out because of over looking the pump and now are going through the prosses of getting new motors (2 300zx friends of mine)

Tim

[XtremeHKS]

i would upgrade the fuel pump if i was you...i know of people that leaned out because of over looking the pump and now are going through the prosses of getting new motors (2 300zx friends of mine)

Tim

Tim,

the fuel pump was the first thing i upgraded in all of my performance vehicles, both 240sx's, my Supra, my maxima and my eclipse. I would also recommend it as well, its only $90.

[redamnavit]

I put my Walbro in about a month before I pulled the KA out and it never gave me trouble, even with an FPR that had 250K on it. Unless you have reason to believe your regulator is shot you'll be fine.